Question
A monkey tries to ascend a greased pole 14 m high. He ascends 2 m in
first two minutes and slips 1 m in alternate minute. If he continues to
ascend in this fashion, how long does he take to reach the top?
A monkey tries to ascend a greased pole 14 m high. He ascends 2 m in
first two minutes and slips 1 m in alternate minute. If he continues to
ascend in this fashion, how long does he take to reach the top?
Answer: Option D
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In every two minutes he is able to ascend 1m. In this
fashion he ascends up to 12m because when he reaches at the
top he does not slip down. Thus, up to 12m he takes 12*2 =
24 min. and for the last 2 m he takes 1m.
Therefore, total time taken by him is 24+1= 25 min to reach
the top.
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